Kathrein VOS 138/RA House connection amplifier

House connection amplifiers for modern HFC networks

• VOS 137/RA - locally fed
• VOS 138/RA - remote-fed through RF input (auto-supply)
• VOS 139/RA - remote-fed
• State-of-the-art GaAs-MMIC technology
• Very high output level at a favorable energy balance
• Highly efficient switched-mode power supply unit

New innovative operational concept:

• Easier leveling due to rotational switch, wide setting range (20 dB), small increments (1 dB)
• Basic configuration via bridging plugs
• Device settings can be reproduced exactly

• Insert position for additional functions in forward path (e.g. de-emphasis, system equalizer)
• Variable interstage gain 40/34/30 dB using bridging plugs (delivery status: 34 dB)
• Diplexer bridgeable (Band I operation possible without return path)
• Return path (active/passive/switched-off) with diverse built-in setting options
• Classification to KDG 1 TS 140: Type D (4.4)

Test sockets (F-type connectors):

• Bi-directional on input (connectable)
• With directional coupler on output

• Internal LED function display
• Surge absorbers on input and output

Comprehensive remote feeding concept (VOS 139/RA):

• Remote-feed current: max. 5 A
• Remote-feed voltage: 32-65 V~
• Remote-feed options: Through RF input and output or through local connection (power passing)

• Conform to: EN 60728-11, EN 50083-2 and EN 60065
• Die-cast housing with F-type connections (VOS 137/RA, VOS 138/RA) or PG 11 connections (VOS 139/RA: cable fittings must be ordered separately, not included in delivery scope)
• For use in weather-protected locations
• The amplifiers comply with the EMC directive 2004/103/EC and Low-Voltage Directive 2006/95/EC applicable at the time of shipping.